Arụ ọrụ nke PCB ga-emetụta ọtụtụ ihe mpụga ma ọ bụ gburugburu ebe obibi, dị ka mmiri mmiri, oke okpomọkụ, ịgba nnu na ihe kemịkal. Ihe mkpuchi nchebe bụ ihe nkiri polymer nke a na-ekpuchi n’elu PCB iji chebe PCB na ihe ndị dị na ya site na corrosion na gburugburu ebe obibi.

Site na igbochi mmetụta nke mmetọ na ihe ndị metụtara gburugburu ebe obibi, mkpuchi nchebe nwere ike igbochi corrosion nke ndị nduzi, nkwonkwo na-ere ahịa na ahịrị. Tụkwasị na nke ahụ, ọ nwekwara ike ịrụ ọrụ na mkpuchi mkpuchi, si otú ahụ belata mmetụta nke thermal na mechanical stress na components.

Ihe mkpuchi mkpuchi bụ akụkụ dị mkpa nke bọọdụ sekit a na-ebipụta. Ọkpụrụkpụ na-adịkarị n’etiti 3-8 mils (0.075-0.2 mm). A na-ejikarị ya eme ihe na mbara igwe, ụgbọ ala, ndị agha, mmiri, ọkụ ọkụ, ngwá electronic ndị ahịa na ụlọ ọrụ mmepụta ihe.

Ụdị mkpuchi mkpuchi PCB

Dị ka ihe mejupụtara kemịkalụ si dị, mkpuchi mkpuchi nwere ike kewaa ụzọ ise, ya bụ acrylic, epoxy, polyurethane, silicone na p-xylene. Nhọrọ nke mkpuchi a kapịrị ọnụ dabere na ngwa PCB na ihe elektrọnik chọrọ. Naanị site n’ịhọrọ ihe kwesịrị ekwesị ka PCB ga-enwe ike ichekwa nke ọma.

Ihe mkpuchi mkpuchi acrylic:

Acrylic resin (AR) bụ polima acrylic preformed nke na-agbaze n’ime ihe mgbaze ma jiri kpuchie elu PCB. Enwere ike iji aka mee ihe mkpuchi mkpuchi acrylic, fesa ma ọ bụ tinye ya n’ime mkpuchi resin acrylic. Nke a bụ mkpuchi nchebe a na-ejikarị maka PCB.

Ihe mkpuchi mkpuchi polyurethane:

Ihe mkpuchi polyurethane (UR) nwere ezigbo nchebe megide mmetụta nke kemịkalụ, mmiri na abrasion. Ihe mkpuchi mkpuchi polyurethane (UR) dị mfe itinye ma ọ siri ike iwepụ. A naghị atụ aro ka ịrụzi ya ozugbo site na ọkụ ma ọ bụ ígwè na-ere ya, n’ihi na ọ ga-ahapụ isocyanate gas na-egbu egbu.

Epoxy resin (ụdị ER):

Epoxy resin nwere ezigbo njide ọdịdị na gburugburu ebe ọjọọ. Ọ dị mfe iji, mana ọ ga-emebi sekit mgbe a na-akpasa ya. Epoxy resin na-abụkarị ngwakọta thermosetting nwere akụkụ abụọ. A na-agwọkwa ogige otu akụkụ site na okpomọkụ ma ọ bụ radieshon ultraviolet.

Silicone (ụdị SR):

A na-eji mkpuchi mkpuchi silicone (ụdị SR) mee ihe na gburugburu ebe okpomọkụ dị elu. Ụdị mkpuchi a dị mfe itinye ma nwee obere nsí, ma nwee mgbochi iyi na mmetụta nke mmiri. Ihe mkpuchi silicone bụ ogige otu akụkụ.

Paraxylene:

A na-etinye ihe mkpuchi paraxylene na PCB site na iji usoro ntinye mmiri mmiri. Paraxylene na-aghọ gas mgbe ọ na-ekpo ọkụ, na mgbe usoro jụrụ oyi, a na-etinye ya n’ime ụlọ ebe ọ na-emepụta polymerize ma ghọọ ihe nkiri dị mkpa. A na-ekpuchi ihe nkiri ahụ n’elu PCB.

Ntuziaka mkpuchi mkpuchi PCB

Ụdị mkpuchi conformal na-adabere na ọkpụrụkpụ nke mkpuchi a chọrọ, ebe a ga-ekpuchi ya, na ogo nke mkpuchi mkpuchi na osisi na akụkụ ya.

Kedu otu esi etinye mkpuchi conformal na PCB?

Ihe osise aka na ahịhịa

Eji aerosol tee aka

Jiri egbe ịgba atomized maka ịgbanye aka

Mkpuchi itinye aka na-akpaghị aka

Jiri mkpuchi nhọrọ